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Computer assisted navigation in total knee arthroplasty: comparison with conventional methods.
J Arthroplasty. 2005 Oct; 20(7 Suppl 3):132-8.JA

Abstract

The success of knee arthroplasty is dependent on many factors. Postoperative extremity and component alignment are important determinants of outcome and longevity. Malalignment (>3 degrees) results in higher failure rates. Computer-assisted navigation devices were developed to improve implant positioning. This study evaluated the early outcomes of a high-volume fellowship-trained surgeon relative to component positioning and limb alignment using an image-free navigation system. The navigation group consisted of 116 consecutive patients, and the conventional group consisted of 51 consecutive patients. The postoperative mechanical axis was within 3 degrees of neutral mechanical alignment in 95% of the navigation cases vs 84% of the conventional cases (P < .02). The range of the alignment and component position measurements narrowed, and the undesired outliers decreased. Accuracy was improved with navigation. Navigation was a viable device to improve the outcome of total knee arthroplasty relative to limb and component alignment.

Authors+Show Affiliations

Anderson KC
Department of Orthopaedic Surgery, Wayne State University/Detroit Medical Center, Providence Hospital, Detroit, Michigan, USA.
Buehler KC
No affiliation info available
Markel DC
No affiliation info available

MeSH

AdultAgedAged, 80 and overArthroplasty, Replacement, KneeBiomechanical PhenomenaFemaleHumansMaleMiddle AgedSurgery, Computer-Assisted

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

16214014

Citation

Anderson, Kevin C., et al. "Computer Assisted Navigation in Total Knee Arthroplasty: Comparison With Conventional Methods." The Journal of Arthroplasty, vol. 20, no. 7 Suppl 3, 2005, pp. 132-8.
Anderson KC, Buehler KC, Markel DC. Computer assisted navigation in total knee arthroplasty: comparison with conventional methods. J Arthroplasty. 2005;20(7 Suppl 3):132-8.
Anderson, K. C., Buehler, K. C., & Markel, D. C. (2005). Computer assisted navigation in total knee arthroplasty: comparison with conventional methods. The Journal of Arthroplasty, 20(7 Suppl 3), 132-8.
Anderson KC, Buehler KC, Markel DC. Computer Assisted Navigation in Total Knee Arthroplasty: Comparison With Conventional Methods. J Arthroplasty. 2005;20(7 Suppl 3):132-8. PubMed PMID: 16214014.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Computer assisted navigation in total knee arthroplasty: comparison with conventional methods. AU - Anderson,Kevin C, AU - Buehler,Knute C, AU - Markel,David C, PY - 2005/01/14/received PY - 2005/05/10/accepted PY - 2005/10/11/pubmed PY - 2006/4/6/medline PY - 2005/10/11/entrez SP - 132 EP - 8 JF - The Journal of arthroplasty JO - J Arthroplasty VL - 20 IS - 7 Suppl 3 N2 - The success of knee arthroplasty is dependent on many factors. Postoperative extremity and component alignment are important determinants of outcome and longevity. Malalignment (>3 degrees) results in higher failure rates. Computer-assisted navigation devices were developed to improve implant positioning. This study evaluated the early outcomes of a high-volume fellowship-trained surgeon relative to component positioning and limb alignment using an image-free navigation system. The navigation group consisted of 116 consecutive patients, and the conventional group consisted of 51 consecutive patients. The postoperative mechanical axis was within 3 degrees of neutral mechanical alignment in 95% of the navigation cases vs 84% of the conventional cases (P < .02). The range of the alignment and component position measurements narrowed, and the undesired outliers decreased. Accuracy was improved with navigation. Navigation was a viable device to improve the outcome of total knee arthroplasty relative to limb and component alignment. SN - 0883-5403 UR - https://www.unboundmedicine.com/medline/citation/16214014/Computer_assisted_navigation_in_total_knee_arthroplasty:_comparison_with_conventional_methods_ DB - PRIME DP - Unbound Medicine ER -